Queries :: All Results Not Shown Due To Empty Fields
Sep 9, 2013
I have a query which is supposed to search for all engines with a power rating between a user-specified range ('Rated Power'). The results should state all of these engines along with a few more related details ('System_ID_No', 'Project No', 'Rated Speed', 'Other Ratings' and 'Cylinder Capacity') that are useful to know. However, the problem arises when these other fields are empty. If empty, the related engine results do not appear in the final results spreadsheet. How do I make sure they are included aswell?
SQL:
SELECT tblProjectOverview.System_ID_No, tblProjectOverview.[Project No], tblProjectOverview.Customer, tblEnginePerformance.[Rated Power], tblEnginePerformance.[Rated Speed], tblEnginePerformance.[Other Ratings], tblEngineDefinition.[Cylinder Capacity]
FROM (tblProjectOverview INNER JOIN tblEnginePerformance ON tblProjectOverview.[System_ID_No] = tblEnginePerformance.[Sytem_ID_No]) INNER JOIN tblEngineDefinition ON tblProjectOverview.System_ID_No = tblEngineDefinition.System_ID_No
WHERE (((tblEnginePerformance.[Rated Power]) Between [Enter minimum power rating (kW):] And [Enter maximum power rating (kW):]));
In the test db included the report works fine if every Rep (representative or User/Admin) has records assigned. But, for example, if I go to the table and re-assign the first record to another user/admin (pick list in the table field [Rep]), then `User01’ will have no record assigned at all. Then an error message appears: The Microsoft Office Access database engine does not recognize 'User01' as a valid field name or expression. And no report is produced.
I wanted to try solving it with the info on thread searched by: "cross tab query reports", (13th result) but to be honest I really don’t know how to implement.
Essentially I have a table for rooms around my school and what the rooms contain. Most of the details for the rooms are Boolean (e.g. If the room has a projector, Yes/No). So what im trying to do is have a form where i can select a checkbox(s) and if i tick one, a query that holds all the room details will only show rooms with projectors in them, which i can then display those results in another form.
My question is how do I get the check boxes in the form to narrow down the room results to only show the ones with the criteria i have selected in the form?
I'm having trouble with using a where statement linked to fields when the field is empty. I need a way to say if field is null then 'do nothing'/'select all' else use the text from the box.
I have a form (ServicesRCSSearch) which has 3 combo boxes (Location1, Location2 and Location3). These fields are linked to a query. The button on the form generates the query.
My SQL for the query is currently:
Select Services.Key, Services.Location, Services_1.Location, Services_2.Location From Services, Services_1, Services_2 (copies of the same table all left joined)
Where ((IIf(forms!ServicesRCSSearch!Location1 Is Null,"",services.Location=forms!ServicesRCSSearch! Location1))<>False)
And ((Services_1.Location)=IIf(forms!ServicesRCSSearch !Location2 Is Null,forms!ServicesRCSSearch!Location1,forms!Servi cesRCSSearch!Location2))
And ((Services_2.Location)=IIf(forms!ServicesRCSSearch !Location3 Is Null,forms!ServicesRCSSearch!Location1,forms!Servi cesRCSSearch!Location3))
This works in that it uses the fields to filter the query but when Location1 is empty there are no results as you can see from the code.
I am just querying a single table, no relationship involved with another table. As you can see form the attached jpeg, the ZIP field in some cases is empty. I would run a search using Is NULL but the field is NOT numerical. It's a long story but I had to make this field a TEXT field. Basically, what statement do I have to insert in the criteria field to just pull up the EMPTY ZIP fields?
I have a search form with 12 fields. In my query I use
Code:
Like "*" & [Forms]![CustomerRetestDatabaseSearch]![RetestLocation] & "*" Or Is Null
for each field on the search form.
I get the results I expect, it finds all records that match the criteria. Even if some of the fields in a record are null.
But if the query finds a record that matches one field I enter criteria into, and nulls for the other fields I enter criteria into it displays the record. I want to show exact matches. (If what I entered is null... don't show the record).
The reason I have "Or Is Null" is to include the records for the fields I left blank on the form.
Search Form with Criteria.PNG
Search Query.jpg
Search Results With Missing Entered Criteria(Dont Want These Records Included).jpg
'WHERE ((OperationalRiskEventTable.DateReported)>=Forms!U pdateForm!UDateBegin And (OperationalRiskEventTable.DateReported)<=Forms!Up dateForm!UDateEnd)'
in a query by form.
The problem is that you have to enter a date in the between values for results to show. If I don't enter information into a different field such as Full Name but I enter in 40 into Age then everyone that is 40 years old will show. On the other hand if I enter 40 into the Age field but I leave the Date Reported fields empty then no results will show.
How can I change it so that I don't have to enter dates into the date reported fields for results to show?
I have a query which is compiling monthly transaction of fee, the students paying through voucher. To every month the query is building records for students (Grouped), my problem is i have to show the arrears in the same query which would be on minus/plus of paid amount from actual fee both are in this query i can populate the arrears by simply subtracting both fields but the thing is that i am looking for a arrears which would be the adding total of previous arrears as to date transaction.
I have a query by form that has the criteria Like [Forms]![FormName]![ControlName] & "*" for each field. However the problem is that if one of the records have at least one blank field then the whole record wont show up in the query results. For example if there is a record with Fullname, and Age filled in but Address isn't filled in then if search Adam into the query by form the record wont show up because the address line is blank.
To make records that have a blank field show I know I could use Like Forms![FormName]![ControlName] & "*" Or Forms![FormName]![ControlName] Is Null but when I have used it, it has corrupted the query because I think if you use If Is Null many times in one query it becomes too complex for it to process.
Also, The other method is to use Nz in an expression but I cant do that because I want the query results to show up in a form where you can edit the records and the error message Field is based on an expression and can not be edited comes up if you try to edit the records. Anything else I could put into the criteria to show records that may have a blank field?
I am working on MS Access program where i import data from Excel and i would like to generate a report in MS Access where the fields are empty. Like the MS Access generate a table of errors when we import data and shows information like field name and row number along with Type Conversion label. Can i generate similar table from an MS Access table where fields are null.
I have a query that appends records to a table with a constant numer of fields. so sometimes I have fields with no data. is there any way to create query which selects only fields with data.
I have an Input form that does not clear the fields after I hit the Save button. Data Entry is set to YES. If I use the navigation bar, there is no problem, but I would like to have the fields empty after hitting the Save Button, so that the navigation bar can be removed. What is wrong?
I am trying to make a query with two tables. Each row consist of a student ID, their name and all their personal information. Both tables are exactly the same. But one table is a link table. That link table gets update every so often from an outside program and the other table is not linked. I want to be able to run a query that updates certain fields called "address changes". I have figured out how to find the updates, but I am having a problem with a field that is blank. If I have a field in the non-linked table that is empty but there is information in the linked table, it does not see it. Is there a way to get around this empty field problem?
This is working fine as long as I input the values for all the fields...when some values are missing, I get the error that Access can't append the query due to validation rule violations...got no clue what to do !
I have a table with a field 'Fax number', type: text (since occasionally we write a comment in there, like 'prohibited').
Some records have fax numbers, others are empty.
I want to find all records which do have a fax number. So I wrote into the Query: "is not null", expecting to get only the records which have a fax number or some text in them.
In fact, all records came up in the query, empty as well as non-empty fax fields.
I was wondering if the 'empty field' had a blank space in them, but could not find any. Tried backspace key, but there was nothing to backspace on.
I used the find-replace utility and searched for single space in Whole Field. It picked out quite a few records, but not all - so something invisible seems to be there.
However, when I opened the 'replace' window of find/replace, and had the replace window empty, then clicked 'replace', the msg came 'Access cannot find the specified text'.
What am I doing wrong? What do I have to do to get the query to work?
In my table, I got text fields and numeric fields, however, sometimes, user put an empty field in some records which I disliked. I try to put some checking such as following syntax to check those empty field but nothing happened.
1) If len(NAME) = 0 THEN error message : for TEXT field checking 2) IF len(name) = NULL then error MESSAGE : for TEXT field CHECKING 3) IF NAME = "" then error message : for text field checking 4) IF LEN(AMT) = 0 THEN error message : FOR NUMERIC field checking 5) IF LEN(AMT) = NULL then ERROR MESSAGE : for numeric field checking 6) IF AMT = "" THEN error message : for numeric field checking 7) IF AMT = NULL then ERROR message : for numeric field checking
I have a form that has validation rules, etc, and I want to let the user close it with custom error handling, so I was building a validation procedure for a form close button. The thing is, whether using Isnull, len()=0, or me.field.value = "", it only works until a value is entered. If the user enters a value, the form passes validation, even if the user then backspaces the data out. The only reasonable way to close the form as I see it is to check whether the record has been saved (via recordset),the user their changes will be lost (msgbox vbyesno), then use the undo command to clear the form making it safe to close it. I feel this is safe because my form validation will cover the save command.
I am creating a query with criteria for a dates column. The column cotaining dates in my Table has many empty fields. I want to limit the criteria for my dates to >#1/1/2004#, but I don't want Access to exclude all the empty fields because I want all the data displayed for the purposes of my report.
What do I do? I'm not terribly familiar with Access, so please explain as completely as possible. Thanks in advance!
I have a hourly report I need to run and one of the records will always be filled with a name of the employee. I need to hardkey some data in every day and instead of changing who is there that day I would like to be able to enter in, for example, sales data in a seperate record and when I go to create the report it will exclude any employee names that have 0 sales data or a blank record. so the table would be something like:
I have a logon form that always contains a value in the user name and password fields. How can I do it that these two fields are empty when the logon form is displayed? When I put this code in a program text12.value="" then it delete user name in database.
I have some fields in form that most of the time have data in them. Now comes that when there is no data, there should be one different field filled in with "None."
The client could have 3 types of products, but when he does have none, the "None." should appear. Another catch is that I have the titles for the products on a textbox above the products. Is it possible to have them not appear in the report if the client has no products?
I guess that it could work like in excel with an IF statment. If no values found, then keep those text boxes from appearing on the report and put a text with "None."
I have a report that has the addresses from the client and auditor on the same level. The address of the auditor is on the left side and the client on the right side. They have both the same layout:
Auditor - client Attn auditor - attn client etc.
When the Attn for the auditor is empty, it will show and empty space between auditor name and auditor address. All the fields have the can shrink to yes, but if they are on the same level in the report, the one have text in it, forces the empty space.
a table which has several fields (ProjectID, Name, PM, Category, Date, Tester).
I am trying to find a way to count how many of the fields have been filled out and how many are null for a particular Project ID.
For example, ProjectID=27 has a Name and a PM but no more data so when I load the form I want the db to tell me 3 of the fields have been filled out for this project. This way I can calculate how many are empty (3 in this case)
I am trying to create a select query on "ApprovedDate" where no approval is recorded. IsNull returns an expected type mismatch. Any ideas? Regards:confused:
